Four advantages of electrolytic cryolite China is a big exporter of cryolite products among many countries. This can prove that there is no doubt about the advantages of China's cryolite products in terms of quality and price. Every cryolite manufacturer in China has very high requirements for its products. All products of Meiqi fluorine industry are produced according to national production standards. In the regular research, China's cryolite industry is also constantly innovating. At present, the method of industrial production of aluminum in the world is naturally cryolite alumina molten salt electrolysis. Although all countries are studying new methods of making aluminum, there are few results.

The exported cryolite is chemically called sodium fluoroaluminate. It is white, grayish white, light red or light yellow, with a melting point of about 1000 degrees and slightly soluble in water. Cryolite has outstanding characteristics and a wide range of applications. Most of the fluxes used in aluminum electrolysis are also used as wear-resistant fillers for rubber and resin grinding wheels, opal agent for enamel, shading agent for glass and metal flux. Its advantage is that as a wear-resistant filler for resin grinding wheel, the product can enhance the adhesion of the product, effectively reduce the grinding surface temperature and oxidation degree, reduce the burn area of cutting objects, accelerate the cutting speed and prolong the service life of the product. Cryolite alumina molten salt electrolysis still has its advantages:

① The process flow and production equipment are relatively simple, suitable for large-scale industrial production, and high-grade pure aluminum can be obtained directly.

② Cryolite alumina molten salt electrolysis has developed greatly in recent years, with a large pre baked anode electrolytic cell.

③ In terms of environmental protection, wet and dry purification and recovery are adopted, and the harm of smoke and dust has been controlled.

④ In terms of operation, microcomputer is used to control the production process. The feeding, aluminum discharging and other operations realize mechanization and automation, improve current efficiency, reduce energy consumption and improve energy utilization.

Therefore, cryolite alumina molten salt electrolysis still has strong vitality. Of course, the method itself has great disadvantages: its energy utilization rate is quite low, only less than 50%, and the investment in preparing raw materials for electrolysis is large and the cost is high.